The sensors from the new equipment are sending information that’s coded in a way that the module cannot understand.įortunately, most of the PCMs installed during that time contain a Program Read Only Memory (PROM) chip that can either be replaced or reflashed to accept information from nearly any model of Dodge vehicle. If you have a Dodge vehicle manufactured between 19 and plan to install new or aftermarket sensor units, your power control module (PCM) may not recognize the new equipment. While newer vehicles come with standard applications ready for owner use, older automobiles with PCM modules require code sourcing. What if I have an older Dodge (1993 – 2003)? If your car has been having problems whose root causes are hard to find, more often than not it will have something to do with the computer system. – You need to modify the operation of the ABS, traction control or stability control systems. – You want to smooth out or change the shift characteristics of an automatic transmission.

– You may want to change the engine idle speed, spark timing, fuel mixture or other emission control functions. – You need to resolve a hot or cold starting issue, idle roughness, stalling, or an emissions failure.

– The original factory PCM programming might be overly sensitive or not take into account wear or other factors that may affect the operation of individual sensors or the OBD II monitors. – The vehicle is showing false trouble codes. There are several reasons why you might want to reflash your Dodge Powertrain Control Module. Why Would I Want To Reflash My Dodge Powertrain Control Module? Plus, it will contain all the latest improvements. It will look the same, but the structure materials will be new and it won’t appear like it has been lived in before. You could compare reflashing to demolishing a house, and then building another house (according to the exact same blueprints) in its place. This process is also known as ECM reprogramming, flashing, reprogramming, programming or reconfiguring. This is done by electronically transferring approved calibration files from a vehicle manufacturer’s website. Powertrain Control Module reflashing is the process of replacing the existing software in a vehicle controller with new software. What is Powertrain Control Module Reflashing? We’ll be covering when you should consider powertrain control module (PCM) or electronic control module (ECM) reflashing, how it works, what tools you need, and how to be sure this is a DIY project you want to tackle yourself. Before we dive right into the how-to section, let’s start with the basics.

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